Replace sliding wheel on 30 y.o. Screen door

A quick learner from Somers Point, NJ says:
I am trying to replace my sliding wheels on 2 sliding screen doors. They are approximately 30 years old. Each slider is in 2 parts the bottom plastic part is stuck in the door and not in the photo. They're attached 3" screw with a spring. #84-100 looks like my part.
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Bob from SWISCO responded:

Thanks for writing in, and apologies for our delay in responding. It's difficult to say for sure what you have without seeing an undamaged version of the roller; but I agree the 84-100 looks like a good place to start. Just compare the dimensions, preferably with an undamaged version if possible, to confirm this.

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